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 Re: [PATCH 2/6] qemu/main-loop: rename QEMU_IOTHREAD_LOCK_GUARD to QEMU_BQL_LOCK_GUARD
 
To: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>From: Stefan Hajnoczi <stefanha@xxxxxxxxxx>Date: Thu, 30 Nov 2023 15:27:32 -0500Cc: qemu-devel@xxxxxxxxxx, Jean-Christophe Dubois <jcd@xxxxxxxxxxxxxxx>,	Fabiano Rosas <farosas@xxxxxxx>, qemu-s390x@xxxxxxxxxx,	Song Gao <gaosong@xxxxxxxxxxx>,	Marcel Apfelbaum <marcel.apfelbaum@xxxxxxxxx>,	Thomas Huth <thuth@xxxxxxxxxx>, Hyman Huang <yong.huang@xxxxxxxxxx>,	Marcelo Tosatti <mtosatti@xxxxxxxxxx>,	David Woodhouse <dwmw2@xxxxxxxxxxxxx>,	Andrey Smirnov <andrew.smirnov@xxxxxxxxx>,	Peter Maydell <peter.maydell@xxxxxxxxxx>,	Kevin Wolf <kwolf@xxxxxxxxxx>,	Artyom Tarasenko <atar4qemu@xxxxxxxxx>,	Mark Cave-Ayland <mark.cave-ayland@xxxxxxxxxxxx>,	Max Filippov <jcmvbkbc@xxxxxxxxx>,	Alistair Francis <alistair.francis@xxxxxxx>,	Paul Durrant <paul@xxxxxxx>,	Jagannathan Raman <jag.raman@xxxxxxxxxx>,	Juan Quintela <quintela@xxxxxxxxxx>,	Daniel P. Berrangé <berrange@xxxxxxxxxx>,	qemu-arm@xxxxxxxxxx, Jason Wang <jasowang@xxxxxxxxxx>,	Gerd Hoffmann <kraxel@xxxxxxxxxx>, Hanna Reitz <hreitz@xxxxxxxxxx>,	Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>,	BALATON Zoltan <balaton@xxxxxxxxxx>,	Daniel Henrique Barboza <danielhb413@xxxxxxxxx>,	Elena Ufimtseva <elena.ufimtseva@xxxxxxxxxx>,	Aurelien Jarno <aurelien@xxxxxxxxxxx>,	Hailiang Zhang <zhanghailiang@xxxxxxxxxxx>,	Roman Bolshakov <rbolshakov@xxxxxxx>,	Huacai Chen <chenhuacai@xxxxxxxxxx>, Fam Zheng <fam@xxxxxxxxxx>,	Eric Blake <eblake@xxxxxxxxxx>, Jiri Slaby <jslaby@xxxxxxx>,	Alexander Graf <agraf@xxxxxxxxx>,	Liu Zhiwei <zhiwei_liu@xxxxxxxxxxxxxxxxx>,	Weiwei Li <liwei1518@xxxxxxxxx>, Eric Farman <farman@xxxxxxxxxxxxx>,	Stafford Horne <shorne@xxxxxxxxx>,	David Hildenbrand <david@xxxxxxxxxx>,	Markus Armbruster <armbru@xxxxxxxxxx>,	Reinoud Zandijk <reinoud@xxxxxxxxxx>,	Palmer Dabbelt <palmer@xxxxxxxxxxx>,	Cameron Esfahani <dirty@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx,	Pavel Dovgalyuk <pavel.dovgaluk@xxxxxxxxx>, qemu-riscv@xxxxxxxxxx,	Aleksandar Rikalo <aleksandar.rikalo@xxxxxxxxxx>,	John Snow <jsnow@xxxxxxxxxx>,	Sunil Muthuswamy <sunilmut@xxxxxxxxxxxxx>,	Michael Roth <michael.roth@xxxxxxx>,	David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>,	"Michael S. Tsirkin" <mst@xxxxxxxxxx>,	Richard Henderson <richard.henderson@xxxxxxxxxx>,	Bin Meng <bin.meng@xxxxxxxxxxxxx>,	Stefano Stabellini <sstabellini@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx,	qemu-block@xxxxxxxxxx, Halil Pasic <pasic@xxxxxxxxxxxxx>,	Peter Xu <peterx@xxxxxxxxxx>,	Anthony Perard <anthony.perard@xxxxxxxxxx>,	Harsh Prateek Bora <harshpb@xxxxxxxxxxxxx>,	Alex Bennée <alex.bennee@xxxxxxxxxx>,	Eduardo Habkost <eduardo@xxxxxxxxxxx>,	Paolo Bonzini <pbonzini@xxxxxxxxxx>,	Vladimir Sementsov-Ogievskiy <vsementsov@xxxxxxxxxxxxxx>,	Cédric Le Goater <clg@xxxxxxxx>,	qemu-ppc@xxxxxxxxxx,	Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>,	Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>,	Akihiko Odaki <akihiko.odaki@xxxxxxxxxx>,	Leonardo Bras <leobras@xxxxxxxxxx>,	Nicholas Piggin <npiggin@xxxxxxxxx>,	Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>Delivery-date: Thu, 30 Nov 2023 20:29:37 +0000List-id: Xen developer discussion <xen-devel.lists.xenproject.org> 
 On Thu, Nov 30, 2023 at 10:14:47AM +0100, Ilya Leoshkevich wrote:
> On Wed, 2023-11-29 at 16:26 -0500, Stefan Hajnoczi wrote:
> > The name "iothread" is overloaded. Use the term Big QEMU Lock (BQL)
> > instead, it is already widely used and unambiguous.
> > 
> > Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> > ---
> >  include/qemu/main-loop.h  | 20 ++++++++++----------
> >  hw/i386/kvm/xen_evtchn.c  | 14 +++++++-------
> >  hw/i386/kvm/xen_gnttab.c  |  2 +-
> >  hw/mips/mips_int.c        |  2 +-
> >  hw/ppc/ppc.c              |  2 +-
> >  target/i386/kvm/xen-emu.c |  2 +-
> >  target/ppc/excp_helper.c  |  2 +-
> >  target/ppc/helper_regs.c  |  2 +-
> >  target/riscv/cpu_helper.c |  4 ++--
> >  9 files changed, 25 insertions(+), 25 deletions(-)
> > 
> > diff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h
> > index d6f75e57bd..0b6a3e4824 100644
> > --- a/include/qemu/main-loop.h
> > +++ b/include/qemu/main-loop.h
> > @@ -344,13 +344,13 @@ void qemu_bql_lock_impl(const char *file, int
> > line);
> >  void qemu_bql_unlock(void);
> >  
> >  /**
> > - * QEMU_IOTHREAD_LOCK_GUARD
> > + * QEMU_BQL_LOCK_GUARD
> >   *
> > - * Wrap a block of code in a conditional
> > qemu_mutex_{lock,unlock}_iothread.
> > + * Wrap a block of code in a conditional qemu_bql_{lock,unlock}.
> >   */
> > -typedef struct IOThreadLockAuto IOThreadLockAuto;
> > +typedef struct BQLLockAuto BQLLockAuto;
> >  
> > -static inline IOThreadLockAuto *qemu_iothread_auto_lock(const char
> > *file,
> > +static inline BQLLockAuto *qemu_bql_auto_lock(const char *file,
> >                                                          int line)
> 
> The padding is not correct anymore.
Good point, I didn't check the formatting after search-and-replace. I
will fix this across the patch series in v2.
Stefan
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